DiffuCarb™ E275c Pt/HSC - Carbon Cloth (W1S1011) Electrode for HT-PEMFC is a high-performance electrode specifically designed for high-temperature proton exchange membrane fuel cells (HT-PEMFC). It utilizes a carbon cloth substrate with a hydrophobic microporous layer and uses polytetrafluoroethylene (PTFE) as the binder, making it particularly suitable for applications in high-temperature fuel cell operating environments, ensuring stability and good water management performance under high-temperature conditions.

Product Detailed Description:

Carbon Cloth Substrate:

• Structure: The electrode substrate is made from highly conductive carbon cloth with a thickness of approximately 0.45 mm. The surface of the carbon cloth features a hydrophobic microporous layer, designed to optimize gas diffusion and the transport of reactant gases while reducing moisture accumulation issues within the electrode, which is particularly important for applications in high-temperature proton exchange membrane fuel cells (HT-PEMFC).

• Hydrophobic Microporous Layer: The microporous layer plays a crucial role in water management within the electrode, ensuring effective control of water generation and expulsion in high-temperature operating environments. The hydrophobic properties prevent excessive moisture accumulation in the electrode while maintaining clear pathways for fuel and oxygen flow, thus improving reaction efficiency.

Platinum Black Catalyst Layer:

• High Surface Area Platinum Black: This electrode uses platinum black (Pt Black) as the primary catalytic material. The high surface area design of platinum black provides a large number of active sites, significantly enhancing the efficiency of the oxygen reduction reaction (ORR), making it particularly suitable for proton exchange membrane fuel cells operating at high temperatures.

• Catalyst Advantages: With more active sites, platinum black offers higher reaction efficiency, ensuring long-term effective catalytic reactions in HT-PEMFC and enhancing the overall power output and performance of the fuel cell.

PTFE Binder:

• High-Temperature Performance: The PTFE (polytetrafluoroethylene) binder used in the DiffuCarb™ E275c electrode exhibits excellent high-temperature performance, ensuring that the electrode maintains structural stability without degradation or failure within the operating temperature range of HT-PEMFC (120°C - 200°C).

• Enhanced Water Management: PTFE also has good hydrophobicity and chemical inertness, further improving the electrode's water management capabilities and preventing excessive moisture accumulation. Its stability ensures long-term operation of the electrode under high-temperature conditions.

Main Application Areas:

• High-Temperature Proton Exchange Membrane Fuel Cells (HT-PEMFC): The DiffuCarb™ E275c platinum black-carbon cloth electrode is specifically designed for HT-PEMFCs, suitable for proton exchange membrane fuel cells that need to operate in high-temperature environments. High-temperature operation can enhance the reaction rate, improve CO poisoning resistance, and simplify water management, making it particularly suitable for power plants and applications requiring long-term stable operation.

Product Advantages:

• High-Temperature Stability: The PTFE binder exhibits excellent chemical and thermal stability at high temperatures, allowing the electrode to maintain long-term efficient operation under the high-temperature conditions of HT-PEMFC.

• Excellent Water Management Performance: The combination of the hydrophobic microporous layer in the carbon cloth and the PTFE binder gives the electrode excellent water management capabilities, effectively controlling the moisture content within the electrode, preventing flooding, and ensuring smooth transport of reactant gases.

• High Catalytic Efficiency: The high surface area design of platinum black provides the electrode with a greater number of active sites, enhancing electrochemical reaction efficiency, and significantly increasing the speed and efficiency of the oxygen reduction reaction (ORR) under high-temperature conditions.

Conclusion:

The DiffuCarb™ E275c platinum black (high surface area) - carbon cloth electrode demonstrates exceptional high-temperature stability and water management capabilities in HT-PEMFC. Its design not only improves the catalytic efficiency of the electrode but also enhances the overall structural stability through the combination of PTFE and the hydrophobic microporous layer. This product is particularly suitable for high-temperature proton exchange membrane fuel cells, providing long-term and efficient performance in applications such as power plants, backup power sources, and other environments that require high-temperature operation.

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Partial references citing our materials (from Google Scholar)

Carbon Dioxide Reduction

1. ACS Nano Strain Relaxation in Metal Alloy Catalysts Steers the Product Selectivity of Electrocatalytic CO₂ Reduction

The bipolar membrane (Fumasep FBM) in this paper was purchased from SCI Materials Hub, which was used in rechargeable Zn-CO₂ battery tests. The authors reported a strain relaxation strategy to determine lattice strains in bimetal MNi alloys (M = Pd, Ag, and Au) and realized an outstanding CO₂-to-CO Faradaic efficiency of 96.6% with outstanding activity and durability toward a Zn-CO₂ battery.

2. Front. Chem. Boosting Electrochemical Carbon Dioxide Reduction on Atomically Dispersed Nickel Catalyst

In this paper, Vulcan XC-72R was purchased from SCI Materials Hub. Vulcan XC 72R carbon is the most common catalyst support used in the anode and cathode electrodes of Polymer Electrolyte Membrane Fuel Cells (PEMFC), Direct Methanol Fuel Cells (DMFC), Alkaline Fuel Cells (AFC), Microbial Fuel Cells (MFC), Phosphoric Acid Fuel Cells (PAFC), and many more!

3. Adv. Mater. Partially Nitrided Ni Nanoclusters Achieve Energy-Efficient Electrocatalytic CO₂ Reduction to CO at Ultralow Overpotential

An AEM membrane (Sustainion X37-50 Grade RT, purchased from SCI Materials Hub) was activated in 1 M KOH for 24 h, washed with ultra-purity water prior to use.

4. Adv. Funct. Mater. Nanoconfined Molecular Catalysts in Integrated Gas Diffusion Electrodes for High-Current-Density CO₂ Electroreduction

In this paper (Supporting Information), an anion exchanged membrane (Fumasep FAB-PK-130 obtained from SCI Materials Hub (www.scimaterials.cn)) was used to separate the catholyte and anolyte chambers.

SCI Materials Hub: we also recommend our Fumasep FAB-PK-75 for the use in a flow cell.

5. Appl. Catal. B Efficient utilization of nickel single atoms for CO₂ electroreduction by constructing 3D interconnected nitrogen-doped carbon tube network

In this paper, the Nafion 117 membrane was obtained from SCI Materials Hub.

6. Vacuum Modulable Cu(0)/Cu(I)/Cu(II) sites of Cu/C catalysts derived from MOF for highly selective CO₂ electroreduction to hydrocarbons

In this paper, Proton exchange membrane (Nafion 117), Nafion D520, and Toray 060 carbon paper were purchased from SCI Materials Hub.

7. National Science Review Confinement of ionomer for electrocatalytic CO2 reduction reaction via efficient mass transfer pathways

An anion exchange membrane (PiperION-A15-HCO3) was obtained from SCI Materials Hub.

8. Catalysis Communications Facilitating CO2 electroreduction to C2H4 through facile regulating {100} & {111} grain boundary of Cu2O

Carbon paper (TGPH060), membrane solution (Nafion D520), and ionic membrane (Nafion N117) were obtained from Wuhu Eryi Material Technology Co., Ltd (a company under SCI Materials Hub).

Batteries

1. J. Mater. Chem. A Blocking polysulfides with a Janus Fe3C/N-CNF@RGO electrode via physiochemical confinement and catalytic conversion for high-performance lithium–sulfur batteries

Graphene oxide (GO) in this paper was obtained from SCI Materials Hub. The authors introduced a Janus Fe3C/N-CNF@RGO electrode consisting of 1D Fe3C decorated N-doped carbon nanofibers (Fe3C/N-CNFs) side and 2D reduced graphene oxide (RGO) side as the free-standing carrier of Li2S6 catholyte to improve the overall electrochemical performance of Li-S batteries.

2. Joule A high-voltage and stable zinc-air battery enabled by dual-hydrophobic-induced proton shuttle shielding

This paper used more than 10 kinds of materials from SCI Materials Hub and the authors gave detailed properity comparsion.

The commercial IEMs of Fumasep FAB-PK-130 and Nafion N117 were obtained from SCI Materials Hub.

Gas diffusion layers of GDL340 (CeTech) and SGL39BC (Sigracet) and Nafion dispersion (Nafion D520) were obtained from SCI Materials Hub.

Zn foil (100 mm thickness) and Zn powder were obtained from the SCI Materials Hub.

Commercial 20% Pt/C, 40% Pt/C and IrO2 catalysts were also obtained from SCI Materials Hub.

3. Journal of Energy Chemistry Vanadium oxide nanospheres encapsulated in N-doped carbon nanofibers with morphology and defect dual-engineering toward advanced aqueous zinc-ion batteries

In this paper, carbon cloth (W0S1011) was obtained from SCI Materials Hub. The flexible carbon cloth matrix guaranteed the stabilization of the electrode and improved the conductivity of the cathode.

4. Energy Storage Materials Defect-abundant commercializable 3D carbon papers for fabricating composite Li anode with high loading and long life

The 3D carbon paper (TGPH060 raw paper) were purchased from SCI Materials Hub.

5. Nanomaterials A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS2 Cathode Catalysts

Nafion D520 (5 wt%), and carbon paper (GDL340) were received from SCI-Materials-Hub.

6. SSRN An Axially Directed Cobalt-Phthalocyanine Covalent Organic Polymer as High-Efficient Bifunctional Catalyst for Zn-Air Battery

Carbon cloth (W0S1011) and other electrochemical consumables required for air cathode were provided by SCI Materials Hub.

Oxygen Reduction Reaction

1. J. Chem. Eng. Superior Efficiency Hydrogen Peroxide Production in Acidic Media through Epoxy Group Adjacent to Co-O/C Active Centers on Carbon Black

In this paper, Vulcan XC 72 carbon black, ion membrane (Nafion N115, 127 μL), Nafion solution (D520, 5 wt%), and carbon paper (AvCarb GDS 2230 and Spectracarb 2050A-1050) were purchased from SCI Materials Hub.

2. Journal of Colloid and Interface Science Gaining insight into the impact of electronic property and interface electrostatic field on ORR kinetics in alloy engineering via theoretical prognostication and experimental validation

The 20 wt% Pt3M (M = Cr, Co, Cu, Pd, Sn, and Ir) were purchased from SCI Materials Hub. This work places emphasis on the kinetics of the ORR concerning Pt3M (M = Cr, Co, Cu, Pd, Sn, and Ir) catalysts, and integrates theoretical prognostication and experimental validation to illuminate the fundamental principles of alloy engineering.

Water Electrolysis

1. International Journal of Hydrogen Energy Gold as an efficient hydrogen isotope separation catalyst in proton exchange membrane water electrolysis

The cathodic catalysts of Pt/C (20 wt%, 2–3 nm) and Au/C (20 wt%, 4–5 nm) were purchased from SCI Materials Hub.

2. Small Science Silver Compositing Boosts Water Electrolysis Activity and Durability of RuO2 in a Proton-Exchange-Membrane Water Electrolyzer

Two fiber felts (0.35 mm thickness, SCI Materials Hub) were used as the porous transport layers at both the cathode and the anode.

3. Advanced Functional Materials Hierarchical Crystalline/Amorphous Heterostructure MoNi/NiMoOx for Electrochemical Hydrogen Evolution with Industry-Level Activity and Stability

Anion-exchange membrane (FAA-3-PK-130) was obtained from SCI Materials Hub website.

Fuel Cells

1. Polymer Sub-two-micron ultrathin proton exchange membrane with reinforced mechanical strength

Gas diffusion electrode (60% Pt/C, Carbon paper) was purchased from SCI Materials Hub.

Characterization

1. Chemical Engineering Journal Electrochemical reconstitution of Prussian blue analogue for coupling furfural electro-oxidation with photo-assisted hydrogen evolution reaction

An Au nanoparticle film was deposited on the total reflecting plane of a single reflection ATR crystal (SCI Materials Hub, Wuhu, China) via sputter coater.